From: Ivo van Doorn <ivdoorn@gmail.com>
To: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org, users@rt2x00.serialmonkey.com
Subject: [PATCH 01/13] rt2x00: Limit rt2x00pci rxdone processing to 16 entries at once
Date: Mon, 28 Mar 2011 13:29:44 +0200 [thread overview]
Message-ID: <201103281329.45470.IvDoorn@gmail.com> (raw)
From: Helmut Schaa <helmut.schaa@googlemail.com>
Instead of receiving an unlimited number of frames, stop after 16
entries and reschedule the rxdone tasklet. This allows other tasklets
to be run inbetween.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
---
drivers/net/wireless/rt2x00/rt2400pci.c | 6 ++++--
drivers/net/wireless/rt2x00/rt2500pci.c | 6 ++++--
drivers/net/wireless/rt2x00/rt2800pci.c | 6 ++++--
drivers/net/wireless/rt2x00/rt2x00pci.c | 7 +++++--
drivers/net/wireless/rt2x00/rt2x00pci.h | 5 ++++-
drivers/net/wireless/rt2x00/rt61pci.c | 6 ++++--
6 files changed, 25 insertions(+), 11 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 329f328..137a24e 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1368,8 +1368,10 @@ static void rt2400pci_tbtt_tasklet(unsigned long data)
static void rt2400pci_rxdone_tasklet(unsigned long data)
{
struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- rt2x00pci_rxdone(rt2x00dev);
- rt2400pci_enable_interrupt(rt2x00dev, CSR8_RXDONE);
+ if (rt2x00pci_rxdone(rt2x00dev))
+ tasklet_schedule(&rt2x00dev->rxdone_tasklet);
+ else
+ rt2400pci_enable_interrupt(rt2x00dev, CSR8_RXDONE);
}
static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 5827787..198fc0a 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1500,8 +1500,10 @@ static void rt2500pci_tbtt_tasklet(unsigned long data)
static void rt2500pci_rxdone_tasklet(unsigned long data)
{
struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- rt2x00pci_rxdone(rt2x00dev);
- rt2500pci_enable_interrupt(rt2x00dev, CSR8_RXDONE);
+ if (rt2x00pci_rxdone(rt2x00dev))
+ tasklet_schedule(&rt2x00dev->rxdone_tasklet);
+ else
+ rt2500pci_enable_interrupt(rt2x00dev, CSR8_RXDONE);
}
static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance)
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 808073a..4672dc9 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -806,8 +806,10 @@ static void rt2800pci_tbtt_tasklet(unsigned long data)
static void rt2800pci_rxdone_tasklet(unsigned long data)
{
struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- rt2x00pci_rxdone(rt2x00dev);
- rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_RX_DONE);
+ if (rt2x00pci_rxdone(rt2x00dev))
+ tasklet_schedule(&rt2x00dev->rxdone_tasklet);
+ else
+ rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_RX_DONE);
}
static void rt2800pci_autowake_tasklet(unsigned long data)
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index 4dd82b0..9649bd0 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -60,14 +60,15 @@ int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev,
}
EXPORT_SYMBOL_GPL(rt2x00pci_regbusy_read);
-void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
+bool rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue = rt2x00dev->rx;
struct queue_entry *entry;
struct queue_entry_priv_pci *entry_priv;
struct skb_frame_desc *skbdesc;
+ int max_rx = 16;
- while (1) {
+ while (--max_rx) {
entry = rt2x00queue_get_entry(queue, Q_INDEX);
entry_priv = entry->priv_data;
@@ -93,6 +94,8 @@ void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
*/
rt2x00lib_rxdone(entry);
}
+
+ return !max_rx;
}
EXPORT_SYMBOL_GPL(rt2x00pci_rxdone);
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.h b/drivers/net/wireless/rt2x00/rt2x00pci.h
index 746ce8f..07961b8 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.h
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.h
@@ -101,8 +101,11 @@ struct queue_entry_priv_pci {
/**
* rt2x00pci_rxdone - Handle RX done events
* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
+ *
+ * Returns true if there are still rx frames pending and false if all
+ * pending rx frames were processed.
*/
-void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev);
+bool rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev);
/*
* Device initialization handlers.
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 77e8113..8ee1514 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2313,8 +2313,10 @@ static void rt61pci_tbtt_tasklet(unsigned long data)
static void rt61pci_rxdone_tasklet(unsigned long data)
{
struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
- rt2x00pci_rxdone(rt2x00dev);
- rt61pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_RXDONE);
+ if (rt2x00pci_rxdone(rt2x00dev))
+ rt2x00pci_rxdone(rt2x00dev);
+ else
+ rt61pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_RXDONE);
}
static void rt61pci_autowake_tasklet(unsigned long data)
--
1.7.2.3
next reply other threads:[~2011-03-28 11:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-28 11:29 Ivo van Doorn [this message]
2011-03-28 11:30 ` [PATCH 02/13] rt2x00: Limit rt2800pci txdone processing to 16 entries at once Ivo van Doorn
2011-03-28 11:30 ` [PATCH 03/13] rt2x00: Calculate tx status fifo size instead of hardcoding it Ivo van Doorn
2011-03-28 11:30 ` [PATCH 04/13] rt2x00: Remove DRIVER_SUPPORT_WATCHDOG flag Ivo van Doorn
2011-03-28 11:31 ` [PATCH 05/13] rt2x00: Restructure bw_comp calculationATCHDOG flag Ivo van Doorn
2011-03-28 11:32 ` [PATCH 06/13] rt2x00: Don't recalculate HT40 compensation for each rate Ivo van Doorn
2011-03-28 11:32 ` [PATCH 07/13] rt2x00: Indention cleanup in rt2800lib Ivo van Doorn
2011-03-28 11:33 ` [PATCH 08/13] rt2x00: Remove obsolete rt2x00queue_align_payload Ivo van Doorn
2011-03-28 11:33 ` [PATCH 09/13] rt2x00: Implement tx power temperature compensation Ivo van Doorn
2011-03-28 11:34 ` [PATCH 10/13] rt2x00: Fix STBC transmissions to STAs with Rx STBC > 1 Ivo van Doorn
2011-03-28 11:34 ` [PATCH 11/13] rt2x00: Add support for the ZyXEL NWD-211AN USB Ivo van Doorn
2011-03-28 11:35 ` [PATCH 12/13] rt2x00: Fix tx aggregation problems with some clients Ivo van Doorn
2011-03-28 11:35 ` [PATCH 13/13] rt2x00: Add an error message when trying to send on a full queue Ivo van Doorn
2011-03-29 0:37 ` [PATCH 05/13] rt2x00: Restructure bw_comp calculationATCHDOG flag Julian Calaby
2011-04-02 17:14 ` [PATCH 05/13 v2] rt2x00: Restructure bw_comp calculation Ivo van Doorn
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